WO2021190152A1 - Chlorinator electrode protection method and protection device - Google Patents

Abstract

A chlorinator electrode protection method. A conductivity parameter Fx of a chlorinator is calculated, whether a working state or a working water environment of the chlorinator is abnormal or not is determined according to a parameter value change condition of the conductivity parameter Fx, and then a protective operation is performed on the chlorinator according to the determining result, thereby effectively ensuring the timeliness of performing the protective operation on the chlorinator, reducing the damage probability of the chlorinator, and prolonging the service life of the chlorinator. Also disclosed are a plurality of methods for determining, without depending on the parameter value change condition of the conductivity parameter Fx, whether the working state or the working water environment of the chlorinator is abnormal, and a chlorinator electrode protection device.

Description

Method and device for protecting chlorinator electrode Technical field

The invention relates to a chlorinator electrode protection method, in particular to a chlorinator electrode protection method and a protection device that can prolong the service life of the chlorinator electrode.

Background technique

Chlorinators are widely used in swimming pools to improve the water quality in swimming pools. However, the water environment of the swimming pool is relatively complicated. There may be excessive calcium and magnesium plasma in the water and the water quality is not up to standard, which may easily lead to the clogging of the electrodes of the chlorinator. If the chlorinator electrode is blocked, if it cannot be cleaned in time, it will seriously affect the service life of the electrode.

As shown in Figure 6, A and B in Figure 6 represent the anode and cathode of the chlorinator electrode, and C represents the working water level of the chlorinator. The electrode A in Fig. 6 is not immersed in water, indicating that the working environment of the chlorinator is lacking in water. When the working environment of the chlorinator is short of water or water flow is insufficient, gases are easily generated in the chlorinator. If these gases cannot be discharged in time, the chlorinator may explode, which will seriously affect the safety of the chlorinator. At the same time, the electrode of the chlorinator may also produce scale due to insufficient water flow, which will eventually block the electrode and affect the life of the electrode.

In addition, the continuous working time of most chlorinators on the market is set within 8 hours, but in the process of actual use of the chlorinators, the continuous operating time is usually much longer than 8 hours, and even continues to work without interruption for several days. This will seriously affect the service life of the chlorinator.

Summary of the invention

The purpose of the present invention is to provide a chlorinator electrode protection method and protection device to solve the above technical problems.

To achieve this goal, the present invention adopts the following technical solutions:

A method for protecting electrodes of a chlorinator is provided. The protection action is performed on the chlorinator according to the water quality of the working water environment of the chlorinator. The water quality judgment method includes the following steps:

Step A1, judging whether the current working state of the chlorinator is restart or reverse polarity,

If yes, after waiting for a period of time T5, go to step A2,

If not, go directly to step A2;

Step A2, collecting the current value flowing through the chlorinator electrode, the voltage value at both ends of the electrode, and the water temperature of the working water environment of the chlorinator within each preset interval T1;

Step A3, calculating the parameter value of the conductivity parameter Fx of the chlorinator electrode in the interval T1 based on the data collected in the step A2;

Step A4, judging whether the change rate of the parameter value of the conductivity parameter Fx within a time period T3 exceeds a first threshold;

If yes, determine that there is a water quality problem in the working water environment of the chlorinator and give an alarm, and then control to stop the chlorinator from working;

If not, return to the step A2 to continue data monitoring of the working state of the chlorinator and the water temperature of the working water environment.

As a preferred solution of the present invention, the time T5 is 15 minutes.

As a preferred solution of the present invention, the first threshold is 5% to 15%.

As a preferred solution of the present invention, according to the current salt concentration of the working water environment of the chlorinator, a protective action is performed on the chlorinator, and the method for judging whether the salt concentration is abnormal is:

Judging whether the parameter value of the conductance parameter FX is in a state of continuous decrease in the value within a preset period of time before falling to the second threshold,

If not, it is determined that the salt concentration of the current working environment of the chlorinator is abnormal and an alarm is issued, and then the chlorinator is controlled to stop working.

As a preferred solution of the present invention, according to the fault condition of the chlorinator or the fouling of the electrode, the protection action is performed on the chlorinator, and the method for judging whether the chlorinator is currently faulty or fouling of the electrode :

Judging whether the parameter value of the conductance parameter Fx is in a state of continuously decreasing value within a preset period of time before falling to the second threshold value,

If so, it is determined that the chlorinator is faulty or the electrode is fouled and an alarm is issued, and then the chlorinator is controlled to stop working.

As a preferred solution of the present invention, it is characterized in that the value range of the second threshold is 1800-2800.

As a preferred solution of the present invention, according to the current salt concentration of the working water environment of the chlorinator, a protective action is performed on the chlorinator, and the method for judging whether the salt concentration is abnormal is:

Judging whether the difference between the initially set salt concentration of the working water environment of the chlorinator and the parameter value of the conductivity parameter Fx calculated at the current moment exceeds a third threshold,

If not, it is determined that the salt concentration of the current working environment of the chlorinator is abnormal and an alarm is issued, and then the chlorinator is controlled to stop working.

As a preferred solution of the present invention, according to the fault condition of the chlorinator or the fouling of the electrode, the protection action is performed on the chlorinator, and the method for judging whether the chlorinator is currently faulty or fouling of the electrode :

Judging whether the difference between the initially set salt concentration of the working water environment of the chlorinator and the parameter value of the conductivity parameter Fx calculated at the current moment exceeds a third threshold,

If so, it is determined that the chlorinator is faulty or the electrode is fouled, and then the chlorinator is controlled to stop working.

As a preferred solution of the present invention, the value range of the third threshold is 200-1000.

As a preferred solution of the present invention, it is judged whether the working environment of the chlorinator is short of water according to the water level of the working water environment of the chlorinator, and the protection action is performed on the chlorinator according to the judgment result, and the judgment is The method of whether the working environment of the chlorinator lacks water is:

Judging whether the rate of change of the parameter value of the conductivity parameter Fx within the preset time period T2 exceeds a fourth threshold,

If so, it is determined that the working environment of the chlorinator is short of water and an alarm is issued, and then the chlorinator is controlled to stop working.

As a preferred solution of the present invention, the value range of the fourth threshold is 20%-40%.

As a preferred solution of the present invention, it is judged whether the chlorinator is in an overload working state according to the magnitude of the current value flowing through the electrode of the chlorinator, and the protection action is performed on the chlorinator according to the judgment result, and the judgment is The specific method for whether the chlorinator is in an overload working state is:

Judging whether the current value flowing through the chlorinator electrode exceeds the fifth threshold,

If so, it is determined that the chlorinator is currently in an overload working state, and then the chlorinator is controlled to stop working.

As a preferred solution of the present invention, the fifth threshold value ranges from 3.5A to 7.5A.

As a preferred solution of the present invention, the specific method for judging whether the chlorinator is currently in a restart state or whether the electrode of the chlorinator is in an inverted state is:

Step C1, judging whether the current value flowing through the chlorinator electrode has a process from small to large within a preset time period T9,

If yes, it is determined that the chlorinator is currently in a restart state or the electrode of the chlorinator is currently in an inverted state, and proceed to step C2,

If not, it is determined that the current working state of the chlorinator is stable;

Step C2, judging whether the direction of the current flowing through the chlorinator electrode collected at the current time is consistent with the direction of the current flowing through the chlorinator electrode collected at the previous collection time;

If they are consistent, it is determined that the chlorinator is currently restarting,

If they are inconsistent, it is determined that the chlorinator is currently in an electrode inverted state.

As a preferred solution of the present invention, the time period T9 is less than or equal to 15 minutes.

As a preferred solution of the present invention, the time interval T4 between the two inversions before and after the chlorinator is greater than 20 minutes.

As a preferred solution of the present invention, when the water temperature of the working water environment of the chlorinator exceeds a water temperature threshold, the chlorinator is controlled to stop working.

As a preferred solution of the present invention, the value range of the water temperature threshold is 10-50°C.

As a preferred solution of the present invention, when the water flow state of the working environment of the chlorinator is abnormal, the chlorinator is controlled to stop working.

As a preferred solution of the present invention, a water flow sensor is used to detect whether the water flow state is abnormal.

As a preferred solution of the present invention, the parameter value of the conductivity parameter Fx is calculated by the following formula:

c is a cell constant;

a is a constant;

I is used to represent the current value flowing through the chlorinator electrode;

T is used to represent the temperature of the working water environment of the chlorinator;

U is used to represent the voltage value across the chlorinator electrode.

As a preferred solution of the present invention, when it is judged that the continuous working time of the chlorinator is greater than 8 hours, the chlorinator is controlled to stop working.

The present invention also provides a chlorinator electrode protection device, which can realize the method, characterized in that the chlorinator electrode protection device controls a control box connected to the chlorinator and the chlorine The switch between the chlorinator electrodes is turned on and off to control the start and stop of the chlorinator. The chlorinator electrode protection device specifically includes:

The current detection circuit is connected to a single-chip microcomputer for real-time detection of the current flowing through the chlorinator electrode, and transmits the detected current value to the single-chip microcomputer;

A voltage detection circuit, connected to the single-chip microcomputer, for real-time detection of the voltage at both ends of the chlorinator electrode, and transmitting the detected voltage value to the single-chip microcomputer;

A temperature detection circuit, connected to the single-chip microcomputer, for detecting the water temperature of the working water environment of the chlorinator, and transmitting the detected water temperature data to the single-chip microcomputer;

The keyboard input circuit is connected to the single-chip microcomputer, and is used to provide the user to input the control signal for the chlorinator electrode protection device or the chlorinator through the keyboard, and the single-chip microcomputer drives the corresponding control signal according to the received control signal. Circuit operation to realize the functional control of the chlorinator electrode protection device or the chlorinator;

An alarm circuit, connected to the single-chip microcomputer, is used to prompt an alarm according to the alarm signal output by the single-chip microcomputer when the single-chip microcomputer determines that the chlorinator is working abnormally;

A timing circuit, connected to the single-chip microcomputer, for timing the working time of the chlorinator, and generating a timing signal from the accumulated working time to the single-chip microcomputer;

A display circuit connected to the single-chip microcomputer. The chlorinator electrode protection device displays the working status information of the chlorinator and the working status information of the chlorinator electrode protection device itself on a display device through the display circuit ；

The single-chip microcomputer is used to perform data operations on the received detection data to determine whether the working state and working environment of the chlorinator are abnormal, and according to the judgment result by controlling the on and off of the switch to control the Start and stop of the chlorinator.

The present invention adopts a variety of methods for judging whether the working state of the chlorinator or the working water environment is abnormal, and then performs the chlorinator electrode protection action according to the judgment result, which is beneficial to reduce the probability of damage to the chlorinator and greatly improves the chlorinator Service life.

Description of the drawings

Figure 1 is a step diagram of the chlorinator electrode protection method according to the first embodiment of the present invention;

2 is a diagram showing steps of a method for judging whether the chlorinator is currently in a restart state or whether the electrode of the chlorinator is in an inverted state according to an embodiment of the present invention;

3 is a schematic diagram of the structure of a chlorinator electrode protection device provided by an embodiment of the present invention;

4 is the first schematic diagram of the connection relationship between the chlorinator electrode protection device and the chlorinator provided by an embodiment of the present invention;

Figure 5 is a second schematic diagram of the connection relationship between the chlorinator electrode protection device and the chlorinator provided by an embodiment of the present invention;

Figure 6 is a schematic diagram of a chlorinator electrode in a water-deficient environment.

Detailed ways

The specific implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

Example one

In order to facilitate the description of the specific protection process of the chlorinator electrode protection method provided in the first embodiment of the present invention, firstly, the specific structure inside the chlorinator electrode protection device provided by an embodiment of the present invention will be described. The chlorinator electrode protection device The chlorinator electrode protection method provided by all the embodiments of the present invention can be realized.

As shown in Figures 3, 4, and 5, the chlorinator electrode protection device 1 provided by an embodiment of the present invention controls the on and off of a switch D connected between the control box 2 and the electrode 3 of the chlorinator, thereby controlling Start and stop of the chlorinator. The control box 2 of the chlorinator can control the working state of the chlorinator. The electrode protection device 1 of the chlorinator can control the working state of the chlorinator by controlling the control box 2 of the chlorinator, or directly replace the control box 2 The control function to achieve direct control of the chlorinator. Specifically, as shown in Fig. 3, the chlorinator electrode protection device 1 provided by the embodiment of the present invention specifically includes:

The current detection circuit 11 is connected to a single-chip microcomputer 100 for real-time detection of the current flowing through the cathode and anode of the electrode 3 of the chlorinator, and transmits the detected current value to the single-chip microcomputer 100; the existing current detection circuit with current detection function There are many, so the specific circuit structure of the current detection circuit is not explained here.

The voltage detection circuit 12 is connected to the single-chip microcomputer 100 for real-time detection of the voltage across the electrodes 3 (both ends of the cathode and anode), and transmits the detected electrode voltage to the single-chip 100. There are many existing voltage detection circuits, so the specific circuit structure of the voltage detection circuit will not be explained.

The temperature detection circuit 13 is connected to the single-chip microcomputer 100 to detect the water temperature of the working water environment of the chlorinator and transmit the detected water temperature data to the single-chip 100. There are many existing temperature detection circuits, and the specific circuit structure of the temperature detection circuit is not described here.

The keyboard input circuit 14 is connected to the single-chip microcomputer 100 to provide the user with a keyboard to input control signals for the chlorinator electrode protection device or the chlorinator. The single-chip microcomputer 100 drives the corresponding circuit according to the received control signal (the corresponding circuit described here) The circuit includes a circuit detection circuit 11, a voltage detection circuit 12, a temperature detection circuit 13, an alarm circuit 15, a timing circuit 16, and a display circuit 17, etc., which establish a communication connection with the single-chip microcomputer 100, to realize the protection of the chlorinator electrode Function control of the device or the chlorinator.

The alarm circuit 15 is connected to the single-chip microcomputer 100 and is used for prompting an alarm according to the alarm signal output by the single-chip microcomputer when the single-chip microcomputer 100 determines that the chlorinator is working abnormally. There are many existing alarm circuits, so the specific circuit structure of the alarm circuit is not described here.

The timing circuit 16 is connected to the single-chip microcomputer 100 for timing the working time of the chlorinator, and sends a timing signal to the single-chip 100 by generating a timing signal from the accumulated working time. There are many existing timing circuits, so the specific circuit structure of the timing circuit is not described here.

The display circuit 17 is connected to the single-chip microcomputer 100, and the chlorinator electrode protection device 1 displays the working status information of the chlorinator and the working status information of the chlorinator electrode protection device itself on the display device through the display circuit 17. Many existing display circuits can be applied to the chlorinator electrode protection device provided in this embodiment, and all the specific circuit structures of the display circuit are not described here.

The single-chip microcomputer 100 is used to perform data operations on the received detection data to determine whether the working state and working environment of the chlorinator are abnormal, and according to the judgment result, control the on and off of the switch D to control the start and stop of the chlorinator In order to avoid damage to the chlorinator due to abnormal working conditions for a long time.

In the above technical solution, the single-chip microcomputer 100, the current detection circuit 11, the voltage detection circuit 12, the temperature detection circuit 13, the keyboard input circuit 14, the alarm circuit 15, the timing circuit 16, and the display circuit 17 constitute the electrode protection of the chlorinator electrode protection device 1. The system 200, the electrode protection system 200 is packaged in the chlorinator electrode protection device 1. In addition, the switch D is preferably a relay in the prior art; the model of the single-chip microcomputer is preferably PIC16F877.

The present invention provides a variety of chlorinator electrode protection methods, and the following content only describes the multiple chlorinator electrode protection methods one by one. As shown in Figure 1, the chlorinator electrode protection method provided by an embodiment of the present invention performs a protective action on the chlorinator according to the water quality of the working water environment of the chlorinator, and the method for judging water quality specifically includes the following steps:

Step A1, judge whether the current working state of the chlorinator is restart or reverse polarity,

If yes, after waiting for a period of time T5, go to step A2;

If not, go directly to step A2;

Step A2: Collect the current value flowing through the chlorinator electrode, the voltage value at both ends of the electrode, and the water temperature of the working water environment of the chlorinator within each preset interval T1;

It should be noted here that the current value flowing through the electrode and the voltage value across the electrode are dynamically changing when the chlorinator is restarted or the electrode is in the reverse state, so the current value and voltage value collected at this time are unstable . If you judge whether the subsequent water quality is abnormal according to the current and voltage data collected during the restart or electrode inversion state of the chlorinator, the judgment result is undoubtedly inaccurate, so before proceeding to step A2, you need to judge the current chlorinator Whether the working status is restart or reverse.

As shown in Figure 2, the specific method for judging whether the chlorinator is currently in the restart state or whether the electrode of the chlorinator is in the reversed state is as follows:

Step C1, judging whether the current value flowing through the chlorinator electrode has a process from small to large within a preset time period T9,

If yes, it is determined that the chlorinator is currently in a restart state or the electrode of the chlorinator is currently in an inverted state, and proceed to step C2,

If not, it is determined that the current working state of the chlorinator is stable;

Step C2: It is judged whether the direction of the current flowing through the chlorinator electrode collected at the current time is consistent with the direction of the current flowing through the chlorinator electrode collected at the previous collection time.

If they are consistent, it is determined that the chlorinator is currently restarting.

If they are inconsistent, it is determined that the chlorinator is currently in the electrode state.

Since the restart of the chlorinator or the electrode reversal process generally does not exceed 15 minutes, it is preferable that the time period T9≤15 minutes.

In addition, the interval time T1 in step A2 (that is, the collection time interval between the current time and the last collection time described in step C2) is less than 15 minutes, and the specific time interval T1 can be set reasonably according to actual needs, for example, it can be set to 3 minutes.

As shown in Figure 1, the method of judging water quality also includes:

Step A3: Calculate the parameter value of the conductivity parameter Fx of the chlorinator electrode in the interval T1 based on the data collected in step A2;

Step A4, judging whether the change rate of the parameter value of the conductivity parameter Fx in a period of time T3 exceeds the first threshold,

If it is, it is determined that there is a water quality problem in the working water environment of the chlorinator and an alarm is issued, and then the chlorinator is controlled to stop the work (control to open the switch D, and then control to stop the chlorinator),

If not, return to step A2 to continue data monitoring of the working state of the chlorinator and the water temperature of the working water environment.

Since the restart of the chlorinator or the electrode inversion process usually does not exceed 15 minutes, the time T5 described in step A1 is preferably 15 minutes. That is, when the chlorinator electrode protection device determines that the chlorinator is currently in the process of restarting or electrode inversion, it waits 15 minutes before monitoring the electrode current, electrode voltage, and water temperature of the chlorinator's working water environment. It is beneficial to ensure the accuracy of the parameter value of the conductivity parameter Fx calculated subsequently, thereby improving the accuracy of judging the water quality situation, and avoiding miscontrol of the chlorinator.

Experimental results show that the time period T3 is preferably 2 hours, and the value range of the first threshold is preferably 5% to 15%, and more preferably, the first threshold is 10%. That is to say, when the change rate of the parameter value of the conductivity parameter Fx exceeds 10% within 2 hours, it is determined that there is a water quality problem in the working water environment of the chlorinator.

In the above technical solution, the parameter value of the conductivity parameter Fx is calculated by the following formula:

c is a cell constant;

a is a constant;

I is used to represent the current value flowing through the electrode of the chlorinator;

T is used to represent the temperature of the working water environment of the chlorinator;

U is used to represent the voltage across the chlorinator electrode.

Example two

In the chlorinator electrode protection method provided in the second embodiment, the chlorinator is protected according to the current salt concentration of the working water environment of the chlorinator, and the method for judging whether the salt concentration is abnormal is:

Determine whether the parameter value of the conductivity parameter Fx is in a state of continuous decrease in the value within a preset period of time before falling to the second threshold,

If not, it is determined that the salt concentration in the current working environment of the chlorinator is abnormal and an alarm is issued, and then the chlorinator is controlled to stop working (the chlorinator electrode protection device controls the chlorinator to stop working by controlling the opening switch D).

In the above technical solution, preferably, the value range of the second threshold is 1800-2800. More preferably, the second threshold value is 2300. The preset period of time when the parameter value of the conductivity parameter Fx falls to the second threshold is set reasonably according to the experimental situation. For example, the preset period of time can be set to 2 hours, that is, when the parameter value of the conductivity parameter Fx continues within 2 hours When it drops and falls to the second threshold, it is determined that there is an abnormality in the salt concentration of the working water environment of the chlorinator.

It should be emphasized here that whether the salt concentration is abnormal is determined based on the change of the parameter value of the conductivity parameter Fx, so in order to ensure the accuracy of the judgment result, the parameter value of the conductivity parameter Fx is also based on the stable operation of the chlorinator Calculated from the collected electrode current, electrode voltage and water temperature data of the working water environment of the chlorinator.

Example three

The third embodiment provides another method for judging whether the current salt concentration of the working water environment of the chlorinator is abnormal. Experiments have shown that the method for judging whether the salt concentration is abnormal or not provided in the third embodiment has a higher accuracy than the method for judging the salt concentration provided in the second embodiment.

The method for judging abnormal salt concentration provided in the third embodiment is:

Determine whether the difference between the salt concentration of the working water environment of the chlorinator initially set and the parameter value of the conductivity parameter Fx calculated at the current moment exceeds a third threshold,

If not, it is determined that the salt concentration of the current working water environment of the chlorinator is abnormal and an alarm is issued, and then the switch D is controlled to open, and then the chlorinator is controlled to stop working.

According to experimental results, preferably, the value range of the third threshold is 200-1000. More preferably, the third threshold value is 500.

The initial salt concentration of the working water environment of the chlorinator is the normal salt concentration of the working water environment of the chlorinator.

Similarly, in order to ensure the accuracy of the judgment result, the parameter value of the conductivity parameter Fx used in the third embodiment is calculated based on the electrode current, electrode voltage and water temperature data of the working water environment of the chlorinator collected after the chlorinator is stable. have to.

Example four

The chlorinator electrode protection method of the fourth embodiment performs a protective action on the chlorinator according to the fault condition of the chlorinator or the condition of electrode fouling, and the method to determine whether the chlorinator is currently not malfunctioning or the electrode fouling is as follows:

Determine whether the parameter value of the conductivity parameter Fx is in a state of continuous decrease in the value within a preset period of time before falling to the second threshold,

If it is, it is determined that the chlorinator is faulty or the electrode is fouled and alarms, and then the switch D is controlled to open, and then the chlorinator is controlled to stop working.

The value range of the second threshold described in the fourth embodiment is preferably 1800-2800. More preferably, the second threshold value is 2300.

The preset time period described in the fourth embodiment is determined according to actual experimental conditions. For example, the preset time period may be several hours or tens of minutes.

Similarly, in order to ensure the accuracy of the judgment result, the parameter value of the conductivity parameter Fx used in the fourth embodiment is calculated based on the electrode current, electrode voltage and water temperature data of the working water environment of the chlorinator collected after the chlorinator is stable. have to.

Example five

The fifth embodiment provides another chlorinator electrode protection method, which also performs a protective action on the chlorinator according to the failure condition of the chlorinator or the condition of electrode fouling. The difference between the fifth embodiment and the fourth embodiment is that the method of the fifth embodiment to determine whether the chlorinator is currently malfunctioning or electrode fouling is as follows:

Determine whether the difference between the initial setting of the salt concentration of the working water environment of the chlorinator and the parameter value of the conductivity parameter Fx calculated at the current moment exceeds the third threshold,

If it is, it is determined that the chlorinator is faulty or the electrode is fouled, and then the switch D is turned off by controlling to control the chlorinator to stop working.

The value range of the third threshold is preferably 200-1000, and more preferably, the third threshold is 500.

It should also be emphasized that the parameter value of the conductivity parameter Fx used in the fifth embodiment is also calculated based on the electrode current value and voltage value collected after the chlorinator works stably, and the water temperature of the working water environment of the chlorinator.

Example Six

The chlorinator electrode protection method provided in the sixth embodiment judges whether the working environment of the chlorinator is lack of water according to the water level of the working water environment of the chlorinator, and performs protection actions on the chlorinator according to the judgment result to determine the chlorinator The method of whether the working environment is lack of water is:

Determine whether the rate of change of the parameter value of the conductivity parameter Fx within the preset time period T2 exceeds the fourth threshold,

If it is, it is determined that the working environment of the chlorinator is short of water and alarms, and then the chlorinator is controlled to stop working.

T2 is preferably 3 minutes.

The value range of the fourth threshold is preferably 20%-40%. More preferably, the fourth threshold value is 30%. That is to say, when the change rate of the parameter value of the conductivity parameter Fx exceeds 30% within 3 minutes, it is judged that the working environment of the chlorinator is short of water.

Example Seven

The chlorinator electrode protection method provided in the seventh embodiment judges whether the chlorinator is in an overload working state according to the magnitude of the current flowing through the chlorinator electrode, and performs a protective action on the chlorinator according to the judgment result to determine whether the chlorinator is The specific methods for overloading work are:

Determine whether the current value flowing through the chlorinator electrode exceeds the fifth threshold,

If it is, it is determined that the chlorinator is currently in an overload working state, and then the switch D is turned off by controlling to control the chlorinator to stop working.

If not, it is determined that the chlorinator is not currently in an overload working state.

The value range of the fifth threshold is preferably 3.5A to 7.5A, and the specific value of the fifth threshold is set reasonably according to the working performance of different chlorinators.

Example eight

The chlorinator electrode protection method provided in the eighth embodiment performs the chlorinator protection action according to the water temperature of the working water environment of the chlorinator, specifically:

When the water temperature of the working water environment of the chlorinator exceeds a water temperature threshold, the switch D is controlled to open, and then the chlorinator is controlled to stop working.

The value range of the water temperature threshold is preferably 10-50°C. The specific value of the water temperature threshold depends on the working performance of the chlorinator. For example, some chlorinators can work at a water temperature of 50°C, so the water temperature threshold can be set to 50°C. Some chlorinators can only work at water temperatures below 30°C, so set the water temperature threshold to 30°C.

Example 9

The chlorinator electrode protection method provided in the ninth embodiment judges whether there is abnormal water flow in the working water environment of the chlorinator, and then makes the protection action to the chlorinator, specifically:

When the water flow sensor in the chlorinator electrode protection device detects that there is abnormal water flow in the working water environment of the chlorinator, it sends an abnormal water flow signal to the single-chip microcomputer 100, and the single-chip 100 controls to open switch D according to the received abnormal water flow signal, and then controls The chlorinator stopped working.

Example ten

The chlorinator electrode protection method provided in the tenth embodiment judges whether the continuous working time of the chlorinator is greater than a preset continuous working time (for example, 8 hours), and then performs a protection action on the chlorinator. Specifically:

For example, when the chlorinator electrode protection device monitors that the continuous working time of the chlorinator exceeds 8 hours, the chlorinator electrode protection device controls to open the switch D, and then controls the chlorinator to stop working.

In the above technical scheme, in order to improve the accuracy of calculation of the parameter value of the conductivity parameter Fx and further improve the accuracy of the implementation of the chlorinator protection action, the chlorinator electrode protection device calculates the working water of the chlorinator in a certain period of time. The average water temperature of the environment is used as the T in the calculation formula of the conductivity parameter Fx, by calculating the average current value flowing through the electrode during the time period as I in the calculation formula of the conductivity parameter Fx, and by calculating the average voltage across the electrode during the time period As the U in the conductivity parameter Fx formula.

Specifically, the water temperature of the working water environment of the chlorinator detected by the chlorinator electrode protection device multiple times during this period of time is T ₁ , T ₂ , T ₃ , ..., T _G , and then the time is eliminated The lowest temperature and highest temperature detected in the segment, and calculate the average value of the remaining water temperature data to get the average water temperature ΔT:

In the above formula (1), T _{max is} used to represent the highest temperature detected by the chlorinator electrode protection device in this time period;

T _{min is} used to represent the lowest temperature detected in this time period;

k is the temperature compensation parameter; the temperature compensation parameter is quantitative, usually obtained by the experimenter after many experiments.

G is the number of water temperature data measured by the chlorinator electrode protection device in this time period.

Similarly, during this period of time, the average current ΔI flowing through the chlorinator electrode is calculated by the following formula (2):

In the above formula (2), I _{max is} used to represent the highest current value detected by the chlorinator electrode protection device in this time period;

T _{min is} used to represent the lowest current value detected in this time period;

m is the current compensation parameter; the current compensation parameter m is quantitative, which is also usually obtained by experimenters after many experiments.

G is the number of current values detected by the chlorinator electrode protection device during this period of time.

During this period of time, the average voltage ΔU across the chlorinator electrode is calculated by the following formula (3):

In the above formula (3), U _{max is} used to represent the highest voltage value detected by the chlorinator electrode protection device in this time period;

U _{min is} used to represent the lowest voltage value detected in this time period;

n is the voltage compensation parameter;

G is the number of voltage values detected by the chlorinator electrode protection device during this period of time.

The voltage compensation parameter n is quantitative, and is usually obtained by experimenters after many experiments.

In addition, it should be noted that, in order to ensure that the chlorinator has sufficient reversal time, preferably, the time interval T4 between the two reversals before and after the chlorinator is greater than 20 minutes.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (23)

1. A chlorinator electrode protection method is characterized in that: the chlorinator is protected according to the water quality of the working water environment of the chlorinator, and the water quality judgment method includes the following steps:

   Step A1, judging whether the current working state of the chlorinator is restart or reverse polarity,

   If yes, after waiting for a period of time T5, go to step A2,

   If not, go directly to step A2;

   Step A2, collecting the current value flowing through the chlorinator electrode, the voltage value at both ends of the electrode, and the water temperature of the working water environment of the chlorinator within each preset interval T1;

   Step A3, calculating the parameter value of the conductivity parameter Fx of the chlorinator electrode in the interval T1 based on the data collected in the step A2;

   Step A4, judging whether the change rate of the parameter value of the conductivity parameter Fx within a time period T3 exceeds a first threshold;

   If yes, determine that there is a water quality problem in the working water environment of the chlorinator and give an alarm, and then control to stop the chlorinator from working;

   If not, return to the step A2 to continue data monitoring of the working state of the chlorinator and the water temperature of the working water environment.
2. The chlorinator electrode protection method according to claim 1, wherein the time T5 is 15 minutes.
3. The chlorinator electrode protection method according to claim 1, wherein the first threshold value is 5% to 15%.
4. The chlorinator electrode protection method according to claim 1, characterized in that: according to the current salt concentration of the working water environment of the chlorinator, the protection action is performed on the chlorinator, and the method of judging whether the salt concentration is abnormal is :

   Judging whether the parameter value of the conductance parameter FX is in a state of continuous decrease in the value within a preset period of time before falling to the second threshold,

   If not, it is determined that the salt concentration of the current working environment of the chlorinator is abnormal and an alarm is issued, and then the chlorinator is controlled to stop working.
5. The chlorinator electrode protection method according to claim 1, characterized in that: according to the fault condition of the chlorinator or the fouling of the electrode, the protection action is performed on the chlorinator to determine whether the chlorinator is currently The methods for malfunction or electrode fouling are:

   Judging whether the parameter value of the conductance parameter Fx is in a state of continuously decreasing value within a preset period of time before falling to the second threshold value,

   If so, it is determined that the chlorinator is faulty or the electrode is fouled and an alarm is issued, and then the chlorinator is controlled to stop working.
6. The chlorinator electrode protection method according to claim 4 or 5, wherein the second threshold has a value range of 1800-2800.
7. The chlorinator electrode protection method according to claim 1, characterized in that: according to the current salt concentration of the working water environment of the chlorinator, the protection action is performed on the chlorinator, and the method of judging whether the salt concentration is abnormal is :

   Judging whether the difference between the initially set salt concentration of the working water environment of the chlorinator and the parameter value of the conductivity parameter Fx calculated at the current moment exceeds a third threshold,

   If not, it is determined that the salt concentration of the current working environment of the chlorinator is abnormal and an alarm is issued, and then the chlorinator is controlled to stop working.
8. The chlorinator electrode protection method according to claim 1, characterized in that: according to the fault condition of the chlorinator or the fouling of the electrode, the protection action is performed on the chlorinator to determine whether the chlorinator is currently The methods for malfunction or electrode fouling are:

   Judging whether the difference between the initially set salt concentration of the working water environment of the chlorinator and the parameter value of the conductivity parameter Fx calculated at the current moment exceeds a third threshold,

   If so, it is determined that the chlorinator is faulty or the electrode is fouled, and then the chlorinator is controlled to stop working.
9. The chlorinator electrode protection method according to claim 7 or 8, wherein the third threshold value ranges from 200 to 1000.
10. The chlorinator electrode protection method according to claim 1, characterized in that: according to the water level of the working water environment of the chlorinator, it is judged whether the working environment of the chlorinator is lack of water, and the judgment result is checked. The chlorinator performs a protective action, and the method for judging whether the working environment of the chlorinator is lack of water is:

    Judging whether the rate of change of the parameter value of the conductivity parameter Fx within the preset time period T2 exceeds a fourth threshold,

    If it is, it is determined that the working environment of the chlorinator is short of water and an alarm is issued, and then the chlorinator is controlled to stop working.
11. The method for protecting chlorinator electrodes according to claim 10, wherein the fourth threshold value ranges from 20% to 40%.
12. The chlorinator electrode protection method according to claim 1, characterized in that: according to the magnitude of the current flowing through the chlorinator electrode, it is judged whether the chlorinator is in an overload working state, and according to the judgment result The chlorinator performs a protection action, and the specific method for judging whether the chlorinator is in an overload working state is as follows:

    Judging whether the current value flowing through the chlorinator electrode exceeds the fifth threshold,

    If so, it is determined that the chlorinator is currently in an overload working state, and then the chlorinator is controlled to stop working.
13. The chlorinator electrode protection method according to claim 12, wherein the fifth threshold value ranges from 3.5A to 7.5A.
14. The chlorinator electrode protection method according to claim 1, wherein the specific method for judging whether the chlorinator is currently in a restart state or whether the electrode of the chlorinator is in an inverted state is:

    Step C1, judging whether the current value flowing through the chlorinator electrode has a process from small to large within a preset time period T9,

    If yes, it is determined that the chlorinator is currently in a restart state or the electrode of the chlorinator is currently in an inverted state, and proceed to step C2,

    If not, it is determined that the current working state of the chlorinator is stable;

    Step C2, judging whether the direction of the current flowing through the chlorinator electrode collected at the current time is consistent with the direction of the current flowing through the chlorinator electrode collected at the previous collection time;

    If they are consistent, it is determined that the chlorinator is currently restarting,

    If they are inconsistent, it is determined that the chlorinator is currently in an electrode inverted state.
15. The chlorinator electrode protection method according to claim 14, wherein the time period T9 is ≤ 15 minutes.
16. The chlorinator electrode protection method according to claim 1, wherein the time interval T4 between the two inversions of the chlorinator before and after the chlorinator is greater than 20 minutes.
17. The chlorinator electrode protection method according to claim 1, wherein when the water temperature of the working water environment of the chlorinator exceeds a water temperature threshold, the chlorinator is controlled to stop working.
18. The chlorinator electrode protection method according to claim 17, wherein the water temperature threshold has a value range of 10-50°C.
19. The chlorinator electrode protection method according to claim 1, wherein when the water flow state of the working environment of the chlorinator is abnormal, the chlorinator is controlled to stop working.
20. The method for protecting the electrode of a chlorinator according to claim 19, wherein a water flow sensor is used to detect whether the water flow state is abnormal.
21. The chlorinator electrode protection method according to claim 1, wherein the parameter value of the conductivity parameter Fx is calculated by the following formula:

    

    c is a cell constant;

    a is a constant;

    I is used to represent the current value flowing through the chlorinator electrode;

    T is used to represent the temperature of the working water environment of the chlorinator;

    U is used to represent the voltage value across the chlorinator electrode.
22. The chlorinator electrode protection method according to claim 1, wherein when it is judged that the continuous working time of the chlorinator is greater than 8 hours, the chlorinator is controlled to stop working.
23. A chlorinator electrode protection device, which can realize the method according to any one of claims 1 to 22, characterized in that: the chlorinator electrode protection device controls a control connected to the chlorinator The switch between the tank and the chlorinator electrode is turned on and off to control the start and stop of the chlorinator. The chlorinator electrode protection device specifically includes:

    The current detection circuit is connected to a single-chip microcomputer for real-time detection of the current flowing through the chlorinator electrode, and transmits the detected current value to the single-chip microcomputer;

    A voltage detection circuit, connected to the single-chip microcomputer, for real-time detection of the voltage at both ends of the chlorinator electrode, and transmitting the detected voltage value to the single-chip microcomputer;

    A temperature detection circuit, connected to the single-chip microcomputer, for detecting the water temperature of the working water environment of the chlorinator, and transmitting the detected water temperature data to the single-chip microcomputer;

    A keyboard input circuit, connected to the single-chip microcomputer, is used to provide the user with a keyboard to input control signals for the chlorinator electrode protection device or the chlorinator, and the single-chip microcomputer drives the corresponding control signal according to the received control signal. Circuit operation to realize the functional control of the chlorinator electrode protection device or the chlorinator;

    An alarm circuit, connected to the single-chip microcomputer, is used to prompt an alarm according to the alarm signal output by the single-chip microcomputer when the single-chip microcomputer determines that the chlorinator is working abnormally;

    A timing circuit, connected to the single-chip microcomputer, for timing the working time of the chlorinator, and generating a timing signal from the accumulated working time to the single-chip microcomputer;

    A display circuit connected to the single-chip microcomputer. The chlorinator electrode protection device displays the working status information of the chlorinator and the working status information of the chlorinator electrode protection device itself on a display device through the display circuit ；

    The single-chip microcomputer is used to perform data operations on the received detection data to determine whether the working state and working environment of the chlorinator are abnormal, and according to the judgment result by controlling the on and off of the switch to control the Start and stop of the chlorinator.

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